Controls how wc3270 responds to a 3270 ALARM WCC or an NVT BEL (U+0007) character.
beepFlash causes both the Windows console to
beep and the wc3270 window to flash; this is the default behavior.
flash cause just the beep and just
the window flash respectively.
nonecauses ALARM WCCs and BEL characters to be ignored.